Heel-burnishing machine



(No Model.) V2Sheets-Sheet; 1.

A. ANDRES.

HEEL BURNISHING MACHINE.

No. 371,022. Patented Oot.,4, 1887.

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2 sheets-sheet 2.

(No Model.)

A. ANDRES.

HEEL BURNISHING llvIAGHINB.

Patented Oct. 4, 1887.

WITIJEESEE.

UNITED STATES y PATENT OFFICE.

ALBERT ANDRES, on ERANKEORT, GERMANY, ASsreNoR To CHARLES S. LARRABEE,or SAME PLACE, AND CHARLES E. TINGLEY, oE BOSTON,

MASSACHUSETTS.

HEEL-BURNISHING MACHINE.

SPE CIFICATIN forming part of Letters Patent No. 371,022, dated October4, 1887.

Application filed June 11, 1887. Serial No. 240,997. (No model.)

To all whom it may concern..-

Be it known that I, ALBERT ANDRES, of Frankfort, Germany, have inventeda new and useful Improvement in Heel-Burnishers, of which the followingis a full, clear, and exact description, reference being had to theaccompanying drawings, making part hereof.

My invention is an improvement upon what is well known to the trade asthe Tapley heel burnisher. The Tapley burnisheris designed to burnishheels of moderate height and but slightly underset, and its polishing orburnishing tool is given a circular motion around the heel, such motionenabling the tool to be brought in proper contact with the parts of theheel to be burnished. To burnish a very much curved or underset heel itis necessary that the path of the tool should be elliptical at timesinstead of always circular, and that the pressure of the polishingironshould be adjustable; and to that end I have interposed between the mainrock-shaft and the burnishing-tool of the Tapley burnisher various partsnow to be described.

. In the drawings, Figure lis a side elevation of a burnisher embodyingmy invention. Figs. 2, 3, and 4. show details of the construction of theeccentric adjusting mechanism. Figs. 5, 6, and 7 are diagrams showingthe path of the tool when the parts are in the positions indicated inFigs. 2, 3, and 4, respectively; and Figs. 8 and 9 show details of thetool-presenting mechanism. Fig. 10 is a sect-ion showing the mode ofpivoting the levers.

The rock-shaft A is mounted upon the standard B, and is given anoscillating or rocking movement by means of the gearing C andsegment-gear C in the ordinary manner. To this shaft A is attached byset-screws the rocker-arm D, so that there is imparted to it anoscillating movement. There is fulcrumed upon this rockerarm D, at c,two levers, E and F. (SeeFig. 10.) Thelever F is weighted at its lowerpart by the weight G, which is hollowed out Yso as to surround theshaftA and not interfere with or bind upon it in the course of any ofthe movements which may be required of F. The lever F is provided with aset-screw, b, which bears upon a part of the lever E and regulates theplay of the lever F for the different sizes of heels. For a large heelthe Set screw b is screwed farther through the lever F, and for a smallheel the screw is withdrawn more o'r less from the lever F, thus causingthe polishing-iron to move in alarger or smaller circle, as required.The springs H, secured to the weighted piece G and the lower end of theleverE, tend to keep the lever F t0 its work and cansethe iron to pressupon the heel. By means of this arrangement the tension will be the samewhether the polishingiron presses on the lower part of the heel near thetop lift, as seen in the drawings, or at the higher part near theheel-seat. The tension ofthese springs is regulated by meansofthnmbscrews f. The outer end of the lever E terminates in a pin, Z,which is journaled in the eccentricstrap O. (See Figs. l to 4,inclusive.) This strap is mounted upon the eccentric M, which isattached to a slide, L, mounted in ways on the plate Q, attached to thestandard B. The eccentric-strap O oscillates with the rock-shaftA,andthe leversEF,being mounted upon the rocker-arm D, also oscillate lwiththe rock-shaft. The main purpose of the slide L is to change the axis ofthe eccentric, and conscquently the movement of the pin l, and by meansof it the vertical position of the levers E and F around their fulcrumc, thus guiding the tool K, which is mounted upon the outer end of thevlever F, so that its path will be either in part of a circle or ofenellipse, as may be desired.

The tool is mounted on a rocking crankshaft, I, which is journaled inbearings e on the lever F. The crank at the other end 'of this shaft Iterminates in a pin, g, which setsl into bearings n at the upper end ofthe forked lever P. This lever is fulcrumed at m upon the rocker-arm D,and consequently has the same motion round the shaftA that the levers EF have. The forked lever P straddles the eccentric N, which is mountedabout the shaft Aand corresponds in shape with the eccentric M, so thatwhen the eccentric M is so placed that it will cause the burnisher t0move in an elliptical path the forked lever will be so turned on itsfulcrum m by the various movements of the eccentric N as to cause theface of the burnishing-tool to be always presented to the heel.

The eccentrics M and N are slotted, so as to allow them to move freelyup and down in respect to the shaft A.

The plate L is raised and lowered at -pleasure by means of a hand-lever,t, adjustablyslotted link s, bell-crank r, and link q, which ispivotally attached at p to the upper part of the plate L. (See Figs. 1to 4.) The handlevert is pinned to the jack in the way usual in theold-style Tapley machines, and the apparatus is operated as follows: Theboot or shoe having been jacked in the ordinary manner, the link s isadjusted so that the movement of the hand-lever will carry the jackforward and the polishing-iron K will touch the back of the heel at thetop lift and will move from there to the heel'seat, touching all pointsof the back of the heel. For higher heels thelink willbe lengthened, andfor lower heels it will be shortened. The adjustment necessary toregulate the pressure of the tool upon the work will also be made at thescrews b and f. rI`he rock-shaft A is then set in motion, and the heelis presented to be polished bymoving the jack toward the machine by theuse of the lever t. This continued use of the lever t as thc heel isbrought farther and farther under the tool causes the eccentric togradually depress the back ends of the levers E F and raise the tool K,causing it to mount the heel and describe a larger and larger, ellipse,these changes in thepath of motion of the tool being made throughchanging the position ofthe slide L with relation to the shaft A.

The path of the burnishing-iron is controlled not only by theposition ofthe pin Z at the farther end of the system of levers, which, beingjournaled in the eccentric-strap O, is raised or lowered according tothe position given the plate L, but also by the rocking movement of thearm D, this whole mechanism giving to the burnishing-tool the movementsindicated in the three diagrams, Figs. 5, 6, and 7 and the variousmovements intermediate thereto.

So long as the axis of the eccentric M is coincident with its center(see Fig. 2) it will not act as an eccentric, and the path of the pin Zwill be circular, the portion of the circle through which it traversesdepending upon the arc traversed by the rock-shaft. If the axis of theeccentric is asin Fig. 4, the pin Z will move on a large curve, andconsequently the tool at farther end of the levers willreceiveacorrespondingly small movement. (See Fig. 7.) Such a movementwould be useful ordinarily when burnishing the top layers of the heel.It' the axis of the eccentric is as shown in Fig. 3, the pin Z, movingin a small curve, will give to the polishing-tool a corresponding'lylarge movement, (see Fig. 6,) such as would burnish the heel near its.-seat. As the eccentric M acts upon the levers E F and causes the toolto move in an elliptical path, the eccentric N, which is a part of theeccentric M, throws the forked lever P about its fulcrum m, thus givingto the crank I a slight movement, which is sufficient, however, to keepthe face of the tool in proper relation to the surface of the heel. Theuse of two levers, E and F, the one carrying the tool and the othertransmitting the necessary movements thereto from the eccentric, is verydesirable, as it allows the pressure to be regulated, and also allowsthe parts to yield in case for any cause the pressure is suddenlyincreased, but it is not always necessary.

What I claim as my invention is as follows:

l. In a heel-burnishing machine, the combination of the rock-shaft A,rocker-arm D, and tool-carrying lever mounted thereon, with the plate Q,attached to standard B, the plate L, sliding upon said plate Q andcarrying the eccentric M, the eccentric-strap O and connections,substantially as described, whereby the movements of said strap arecommunicated to the said tool-carrying lever, all substantially as andfor the purposes set forth.

2. In a heel-burnishing machine, the mechanism above described forregulating the pressure on the burnishing-tool, consisting of the leverE and the tool-carryin g lever F, provided with. its weight G, and thesprings H,

connecting said levers E with said weight G, and provided with suitableadjusting mechanism, substantially as described, and adapted for thepurposes set forth.

3.` In a heel-burnishing machine, the rock erarm D, forked lever F,mounted thereon, and crank-shaft I, connected with said forked lever andcarrying the burnishing-tool K, in combination with the variableeccentric N, located within the fork of said lever, all connected andoperating substantially as and for the purposes set forth.

4. In a heel-burnishing machine, the cornbination, with theherein-described mechanism, whereby the path of the burnishing-tool maybe controlled, of the operating-levers t and 1" and theirconnecting-links, all substantially as and for the purposes set forth.

ALBERT ANDRES.

Vitnesses: v

THoMAs STANDACHER, WILHELM KREBs.

IIO

